Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A method for authenticating a first vehicle to a second vehicle, the method comprising: receiving a first packet including position information of the second vehicle and first identity information from the second vehicle through a first communication scheme; receiving a second packet including the first identity information from the second vehicle through a second communication scheme different from the first communication scheme; acquiring first distance information about a distance between the first vehicle and the second vehicle based on the position information of the second vehicle; acquiring second distance information about a distance between the first vehicle and the second vehicle based on an interval between a first time point when the first packet is received and a second time point when the second packet is received and a transmission speed of the second communication scheme; and authenticating the second vehicle based on the first distance information and the second distance information.
Automotive communication and security. This invention addresses the problem of securely authenticating one vehicle to another, particularly in scenarios where communication channels might be compromised or unreliable. The method involves a first vehicle receiving authentication information from a second vehicle. This is accomplished through two distinct communication schemes. A first packet is received via a first communication scheme, containing the second vehicle's position and its identity. Simultaneously or subsequently, a second packet is received via a second, different communication scheme, also containing the second vehicle's identity. The first vehicle then calculates two sets of distance information. The first set is derived from the received position information of the second vehicle. The second set of distance information is calculated based on the time elapsed between receiving the first and second packets, and the known transmission speed of the second communication scheme. Finally, the second vehicle is authenticated by comparing these two independently derived distance measurements. A discrepancy or consistency between the distance calculated from position data and the distance calculated from timing and speed data can be used to verify the authenticity of the second vehicle and its transmitted identity information.
2. The method of claim 1 , wherein a transmission speed of the first communication scheme is faster than the transmission speed of the second communication scheme.
This invention relates to wireless communication systems, specifically methods for selecting between multiple communication schemes based on transmission speed. The problem addressed is optimizing data transmission efficiency by dynamically choosing the fastest available communication scheme while maintaining compatibility with slower schemes when necessary. The method involves a wireless communication device that supports at least two different communication schemes, where the first scheme has a faster transmission speed than the second. The device monitors available communication schemes and selects the fastest one for data transmission when possible. If the faster scheme is unavailable or unsuitable, the device falls back to the slower scheme to ensure communication continuity. This selection process may involve evaluating signal quality, network conditions, or device capabilities to determine the optimal scheme for each transmission. The invention ensures that data is transmitted using the highest available speed while maintaining reliability, improving overall communication efficiency in environments where multiple communication standards coexist. This approach is particularly useful in scenarios where devices must support legacy systems while leveraging newer, faster technologies.
3. The method of claim 2 , wherein the first communication scheme comprises a radio frequency communication scheme, and the second communication scheme comprises an ultrasonic wave communication scheme.
This invention relates to a dual-communication system for transmitting data between devices using both radio frequency (RF) and ultrasonic wave communication schemes. The system addresses the limitations of single-mode communication by combining the advantages of RF and ultrasonic technologies to improve reliability, security, and efficiency in data transmission. The method involves a first communication scheme using RF signals, which are suitable for long-range and high-speed data transfer but may be susceptible to interference and security vulnerabilities. The second communication scheme employs ultrasonic waves, which offer short-range, secure, and interference-resistant communication, particularly in environments where RF signals may be unreliable or easily intercepted. The system dynamically selects or switches between the two communication schemes based on environmental conditions, device capabilities, or data requirements. For example, RF may be used for initial device pairing or long-distance communication, while ultrasonic waves may be utilized for secure, short-range data exchange or in environments with high RF interference. The combination of these schemes ensures robust communication in diverse scenarios, such as industrial automation, medical devices, or consumer electronics, where both reliability and security are critical. The invention enhances communication flexibility, reduces latency, and improves overall system performance by leveraging the strengths of both RF and ultrasonic technologies.
4. The method of claim 1 , wherein the acquiring of the second distance information comprises acquiring the second distance information between the first vehicle and the second vehicle based on at least one of: a transmission speed of the first communication scheme and a moving speed of the first vehicle.
This invention relates to vehicle-to-vehicle communication systems, specifically improving distance estimation between vehicles using different communication schemes. The problem addressed is the need for accurate distance measurement between vehicles to support cooperative driving functions, such as collision avoidance or platooning, when vehicles use different communication protocols or when one vehicle is moving at high speed. The method involves acquiring distance information between a first vehicle and a second vehicle using a first communication scheme, such as dedicated short-range communication (DSRC) or cellular vehicle-to-everything (C-V2X). The key improvement is in acquiring a second set of distance information, which is refined based on either the transmission speed of the communication scheme or the moving speed of the first vehicle. This refinement compensates for delays or inaccuracies in the initial distance measurement, ensuring more precise positioning data. The method may also involve adjusting the communication parameters, such as transmission power or timing, to further enhance accuracy. The solution is particularly useful in dynamic driving scenarios where rapid and reliable distance updates are critical for safety and coordination.
5. The method of claim 1 , wherein the authenticating of the second vehicle comprises: determining the second vehicle as an abnormal vehicle when a similarity between the first distance information and the second distance information is less than a threshold; and determining the second vehicle as a normal vehicle when the similarity between the first distance information and the second distance information is greater than or equal to the threshold.
This invention relates to vehicle authentication systems that verify the legitimacy of a second vehicle by comparing distance information from a first vehicle. The problem addressed is ensuring secure and reliable vehicle-to-vehicle communication by detecting abnormal or potentially malicious vehicles. The system collects first distance information from a first vehicle, such as sensor data or positional data, and receives second distance information from a second vehicle. The system then authenticates the second vehicle by comparing the similarity between the two sets of distance information. If the similarity is below a predefined threshold, the second vehicle is flagged as abnormal, indicating a potential security risk. If the similarity meets or exceeds the threshold, the second vehicle is classified as normal, allowing secure interaction. This method enhances vehicle communication security by detecting discrepancies in distance data, which may indicate spoofing or other malicious activities. The threshold value can be dynamically adjusted based on environmental factors or historical data to improve accuracy. The system may also integrate additional verification steps, such as cryptographic checks or behavioral analysis, to further validate the second vehicle's authenticity. This approach is particularly useful in autonomous driving and connected vehicle networks where secure communication is critical.
6. The method of claim 1 , further comprising broadcasting a warning message that the second vehicle is an abnormal vehicle when a similarity between the first distance information and the second distance information is less than a threshold.
This invention relates to vehicle safety systems that detect and warn about abnormal vehicle behavior using distance information. The system monitors distance data from a first vehicle and compares it to distance data from a second vehicle. If the similarity between the two sets of distance information falls below a predefined threshold, the system broadcasts a warning message to indicate that the second vehicle is behaving abnormally. The method involves collecting distance information from multiple vehicles, analyzing the data to identify discrepancies, and triggering alerts when anomalies are detected. This helps prevent accidents by identifying potentially dangerous vehicles that may be malfunctioning or operating erratically. The system may use various sensors or communication protocols to gather and transmit distance data, ensuring real-time monitoring and rapid response to abnormal conditions. The warning message can be sent to nearby vehicles, infrastructure, or a central monitoring system to facilitate immediate action. This technology enhances road safety by proactively detecting and alerting others to vehicles exhibiting unusual or hazardous behavior.
7. The method of claim 1 , wherein the authenticating of the second vehicle comprises: receiving, from a third vehicle, a warning message indicating that the second vehicle is an abnormal vehicle; and determining that the second vehicle is an abnormal vehicle based on the warning message.
This invention relates to vehicle authentication systems designed to identify and mitigate risks posed by abnormal vehicles, such as those involved in accidents or exhibiting erratic behavior. The system enhances road safety by enabling vehicles to authenticate each other and detect potential threats in real time. The method involves a first vehicle authenticating a second vehicle by receiving a warning message from a third vehicle, which indicates that the second vehicle is abnormal. The first vehicle then determines the second vehicle's abnormal status based on this warning. This process allows vehicles to share critical safety information, such as collision risks or unauthorized vehicle activity, to prevent accidents and improve traffic management. The system leverages inter-vehicle communication to disseminate warnings, ensuring that multiple vehicles can collectively identify and respond to abnormal behavior. By integrating this authentication mechanism, the system provides a proactive approach to road safety, reducing the likelihood of accidents caused by unrecognized hazardous vehicles. The invention is particularly useful in autonomous driving environments where real-time threat detection and response are essential.
8. The method of claim 1 , wherein the authenticating of the second vehicle comprises: determining a reliability of the second vehicle based on driving information of the second vehicle; and determining the second vehicle is an abnormal vehicle when the reliability is less than a threshold.
This invention relates to vehicle authentication systems, specifically for identifying abnormal or unreliable vehicles in a networked driving environment. The problem addressed is ensuring trust and security in vehicle-to-vehicle (V2V) or vehicle-to-infrastructure (V2I) communications by detecting vehicles that may pose risks due to poor reliability or malicious intent. The method involves authenticating a second vehicle by evaluating its driving information, such as historical behavior, sensor data, or communication patterns. A reliability score is calculated based on this data, and if the score falls below a predefined threshold, the second vehicle is flagged as abnormal. This determination may trigger further actions, such as restricting communication, alerting other vehicles, or excluding the vehicle from cooperative driving functions. The driving information used for reliability assessment may include factors like adherence to traffic rules, consistency in sensor readings, or response times to network requests. The threshold for abnormality can be dynamically adjusted based on environmental conditions or network policies. This approach enhances safety and security in autonomous or connected vehicle systems by filtering out potentially unreliable participants.
9. The method of claim 8 , wherein the determining of the reliability of the second vehicle comprises decreasing a level of the reliability of the second vehicle from a first level to a second level when an abnormal driving pattern of the second vehicle is determined.
This invention relates to vehicle reliability assessment systems, particularly for evaluating the trustworthiness of surrounding vehicles in autonomous or semi-autonomous driving environments. The problem addressed is the need to accurately assess the reliability of other vehicles to ensure safe and efficient navigation, especially when detecting abnormal or potentially hazardous driving behaviors. The method involves monitoring the driving patterns of a second vehicle to determine its reliability. If an abnormal driving pattern is detected, the system reduces the assigned reliability level of the second vehicle from a higher initial level to a lower level. This adjustment helps the autonomous vehicle system make safer decisions, such as avoiding proximity to unreliable vehicles or adjusting navigation paths accordingly. The reliability assessment may be based on factors like erratic speed changes, sudden lane deviations, or inconsistent signaling, which indicate unpredictable or unsafe driving behavior. The method integrates with broader vehicle-to-vehicle (V2V) communication or sensor-based monitoring systems to continuously evaluate surrounding vehicles. By dynamically adjusting reliability ratings, the system enhances situational awareness and reduces collision risks in shared traffic environments. This approach is particularly useful in scenarios where real-time trust assessment of other road users is critical for autonomous vehicle operations.
10. The method of claim 2 , further comprising determining a fourth vehicle is an abnormal vehicle when a third packet including third identity information is received from the fourth vehicle through the second communication scheme and then a fourth packet including position information of the fourth vehicle and the third identity information is received from the fourth vehicle through the first communication scheme.
This invention relates to vehicle communication systems designed to detect abnormal vehicles based on inconsistent data transmission patterns. The problem addressed is the need to identify vehicles that may be malfunctioning or behaving suspiciously by analyzing discrepancies in their communication behavior across different protocols. The system monitors vehicles using two distinct communication schemes: a first scheme for transmitting position and identity information, and a second scheme for transmitting identity information alone. A vehicle is flagged as abnormal if it sends a packet containing only identity information via the second scheme, followed by a subsequent packet containing both position and identity information via the first scheme. This sequence indicates a potential anomaly, as normal vehicles would typically transmit data consistently through one or both schemes without such irregular transitions. The method involves receiving a first packet with identity information from a vehicle via the second communication scheme, then receiving a second packet with position and identity information from the same vehicle via the first communication scheme. If this pattern is detected, the vehicle is classified as abnormal. The system may also track additional packets to confirm the anomaly before flagging the vehicle, ensuring accurate detection. This approach helps improve traffic monitoring, security, and safety by identifying vehicles with irregular communication behavior.
11. The method of claim 1 , further comprising: receiving a fifth packet including position information of a fifth vehicle and fifth identity information from the fifth vehicle through the first communication scheme; and decreasing a level of reliability of the fifth vehicle when a sixth packet including the fifth identity information is not received from the fifth vehicle through the second communication scheme within a certain time.
This invention relates to vehicle communication systems that use multiple communication schemes to verify the reliability of vehicle identity information. The problem addressed is ensuring accurate and trustworthy vehicle identification in environments where communication may be intermittent or unreliable. The system receives position and identity information from vehicles via a first communication scheme, such as a short-range or direct communication protocol. To validate the received information, the system checks for corresponding data from the same vehicle via a second communication scheme, such as a longer-range or network-based protocol. If the system does not receive a confirming packet from the vehicle within a specified timeframe, it reduces the reliability level assigned to that vehicle. This mechanism helps detect and mitigate potential spoofing or misidentification by cross-verifying vehicle data across different communication channels. The reliability level adjustment can trigger further actions, such as increased monitoring or exclusion from certain services, ensuring system integrity. The invention improves the robustness of vehicle identification in dynamic communication environments, particularly in applications like vehicle-to-everything (V2X) networks or autonomous driving systems.
12. The method of claim 1 , further comprising: receiving a seventh packet including position information of a sixth vehicle and seventh identity information from the sixth vehicle through the first communication scheme; acquiring third distance information between the first vehicle and the sixth vehicle based on the position information of the sixth vehicle; determining whether a distance between the sixth vehicle and the first vehicle exceeds a communication range of the second communication scheme, based on the third distance information; and determining the sixth vehicle as a normal vehicle or an abnormal vehicle based on information about the sixth vehicle when the distance between the sixth vehicle and the first vehicle exceeds the communication range of the second communication scheme, the information about the sixth vehicle being collected from at least one external vehicle.
A vehicle communication system monitors and classifies nearby vehicles to ensure reliable data exchange. The system uses two communication schemes: a short-range scheme for direct vehicle-to-vehicle (V2V) communication and a longer-range scheme for relaying data through external sources. The system receives a packet from a nearby vehicle containing its position and identity. The system calculates the distance between the first vehicle and the nearby vehicle using the received position data. If this distance exceeds the range of the short-range communication scheme, the system checks whether the nearby vehicle is operating normally or abnormally by gathering information from other external vehicles. This classification helps maintain secure and efficient communication by identifying potentially unreliable or compromised vehicles. The system ensures that only trusted vehicles participate in direct V2V communication, enhancing overall network reliability. The method supports dynamic adjustments based on real-time distance measurements and external vehicle data, improving communication robustness in varying traffic conditions.
13. A first vehicle comprising: a first communication interface comprising communication circuitry configured to receive a first packet including position information of a second vehicle and first identity information from the second vehicle through a first communication scheme; a second communication interface comprising communication circuitry configured to receive a second packet including the first identity information from the second vehicle through a second communication scheme different from the first communication scheme; and a processor configured to acquire first distance information about a distance between the first vehicle and the second vehicle based on the position information of the second vehicle, to acquire second distance information about a distance between the first vehicle and the second vehicle based on an interval between a first time point when the first packet is received and a second time point when the second packet is received and a transmission speed of the second communication scheme, and to authenticate the second vehicle based on the first distance information and the second distance information.
This invention relates to vehicle-to-vehicle (V2V) communication systems, specifically addressing the challenge of securely authenticating nearby vehicles to prevent spoofing or impersonation attacks. The system involves a first vehicle equipped with two communication interfaces: one for receiving position data and identity information from a second vehicle via a first communication scheme (e.g., GPS-based or dedicated short-range communication), and another for receiving identity information from the same second vehicle via a second, distinct communication scheme (e.g., radio frequency or cellular). The first vehicle calculates two distance estimates to the second vehicle: one based on the received position data and another derived from the time difference between receiving the same identity information through both communication schemes, using the known transmission speed of the second scheme. By comparing these two distance estimates, the first vehicle can authenticate the second vehicle, ensuring it is physically present and not a malicious actor. This dual-verification approach enhances security in V2V networks by cross-checking distance measurements from independent communication channels.
14. The first vehicle of claim 13 , wherein a transmission speed of the first communication scheme is faster than the transmission speed of the second communication scheme.
This invention relates to a system for wireless communication between vehicles, addressing the need for efficient and reliable data exchange in dynamic vehicular environments. The system includes a first vehicle equipped with a communication module capable of operating in at least two distinct communication schemes. The first communication scheme is optimized for high-speed data transmission, while the second communication scheme is designed for lower-speed but potentially more stable or energy-efficient communication. The communication module dynamically selects between these schemes based on factors such as signal quality, distance between vehicles, or data urgency. The first vehicle also includes a processing unit that determines the optimal communication scheme by analyzing real-time conditions and adjusting transmission parameters accordingly. This ensures that critical data, such as collision warnings or traffic updates, is transmitted quickly when needed, while less urgent information may use the slower but more reliable scheme. The system may also include a second vehicle with similar capabilities, enabling bidirectional communication. The invention improves vehicular communication by balancing speed and reliability, enhancing safety and efficiency in connected vehicle networks.
15. The first vehicle of claim 14 , wherein the first communication interface comprises a wireless communication interface comprising wireless communication circuitry, and the second communication interface comprises an ultrasonic sensor.
This invention relates to vehicle communication systems, specifically addressing the challenge of enabling reliable and efficient communication between vehicles and external devices or infrastructure. The system includes a first vehicle equipped with a wireless communication interface and a second vehicle or external device equipped with an ultrasonic sensor. The wireless communication interface in the first vehicle includes wireless communication circuitry designed to transmit and receive data wirelessly, facilitating real-time information exchange such as vehicle status, traffic conditions, or navigation data. The ultrasonic sensor in the second vehicle or external device detects and measures distances or obstacles using ultrasonic waves, providing additional environmental awareness. The combination of wireless communication and ultrasonic sensing enhances situational awareness, collision avoidance, and coordination between vehicles and infrastructure. This system improves safety and efficiency in autonomous or semi-autonomous driving environments by integrating wireless data transmission with precise ultrasonic detection. The invention ensures robust communication and sensing capabilities, supporting advanced driver-assistance systems and vehicle-to-everything (V2X) applications.
16. The first vehicle of claim 13 , wherein the processor is further configured to determine the second vehicle is an abnormal vehicle when a similarity between the first distance information and the second distance information is less than a threshold and to determine the second vehicle is a normal vehicle when the similarity between the first distance information and the second distance information is greater than or equal to the threshold.
This invention relates to vehicle monitoring systems that detect abnormal vehicle behavior by comparing distance information from multiple vehicles. The problem addressed is identifying vehicles exhibiting unusual or potentially hazardous driving patterns, such as erratic movements or deviations from expected trajectories. The system involves at least two vehicles equipped with sensors and processors. Each vehicle collects distance information, such as the spatial relationship between the vehicle and its surroundings, using onboard sensors like LiDAR, radar, or cameras. The processor in the first vehicle receives this distance information from the second vehicle and compares it to its own collected data. By analyzing the similarity between the two sets of distance information, the system determines whether the second vehicle is operating normally or abnormally. If the similarity falls below a predefined threshold, the second vehicle is classified as abnormal, indicating unusual behavior. If the similarity meets or exceeds the threshold, the second vehicle is classified as normal. This approach enables real-time detection of abnormal driving patterns, which can be used for collision avoidance, traffic management, or autonomous vehicle coordination. The system enhances road safety by identifying and responding to irregular vehicle movements.
17. The first vehicle of claim 13 , wherein the first communication interface is further configured to broadcast a warning message indicating that the second vehicle is an abnormal vehicle when a similarity between the first distance information and the second distance information is less than a threshold.
This invention relates to vehicle communication systems designed to detect and warn about abnormal vehicle behavior. The system involves a first vehicle equipped with a communication interface and a processing unit. The communication interface receives distance information from a second vehicle, which may be another vehicle or a roadside unit. The processing unit compares the first vehicle's own distance information with the received second vehicle's distance information. If the similarity between the two sets of distance information falls below a predefined threshold, the communication interface broadcasts a warning message to nearby vehicles, indicating that the second vehicle is behaving abnormally. The system may also include a positioning unit to determine the first vehicle's location and a storage unit to store the distance information. The warning message can be transmitted via dedicated short-range communication (DSRC) or other wireless communication protocols. The invention aims to enhance road safety by identifying and alerting other vehicles to potential hazards caused by abnormal vehicle behavior, such as erratic driving or malfunctioning sensors. The system operates autonomously, requiring no manual intervention, and relies on real-time data exchange between vehicles to ensure timely warnings.
18. The first vehicle of claim 13 , wherein the first communication interface is further configured to receive, from a third vehicle, a warning message indicating that the second vehicle is an abnormal vehicle, and the processor is further configured to determine the second vehicle is the abnormal vehicle based on the warning message.
This invention relates to vehicle communication systems designed to enhance road safety by identifying and warning about abnormal vehicles. The system involves a first vehicle equipped with a communication interface and a processor. The communication interface receives data from a second vehicle, which may include vehicle status information such as speed, location, or operational anomalies. The processor analyzes this data to determine if the second vehicle is operating abnormally, such as exhibiting erratic behavior or malfunctioning. If an abnormality is detected, the first vehicle can take action, such as alerting the driver or adjusting its own driving behavior to avoid potential hazards. Additionally, the system can receive warning messages from a third vehicle, which may indicate that the second vehicle is abnormal. The processor uses this external warning to further confirm the abnormal status of the second vehicle. This collaborative approach allows multiple vehicles to share real-time safety information, improving overall traffic safety by quickly identifying and responding to potential risks. The system is particularly useful in autonomous or semi-autonomous driving scenarios where rapid decision-making is critical.
19. The first vehicle of claim 13 , wherein the processor is further configured to determine reliability of the second vehicle based on driving information of the second vehicle and determine the second vehicle as an abnormal vehicle when the reliability is less than a threshold.
This invention relates to vehicle communication systems, specifically for assessing the reliability of nearby vehicles to enhance safety and coordination. The system involves a first vehicle equipped with a processor that evaluates the reliability of a second vehicle based on its driving information, such as speed, acceleration, braking patterns, or lane-keeping behavior. If the second vehicle's reliability falls below a predefined threshold, it is flagged as an abnormal vehicle, indicating potential unsafe or erratic driving. The processor may use historical data, real-time sensor inputs, or external sources to assess reliability. This assessment helps the first vehicle make informed decisions, such as adjusting speed, changing lanes, or alerting the driver to avoid potential collisions. The system may also integrate with vehicle-to-vehicle (V2V) or vehicle-to-infrastructure (V2I) communication networks to gather additional data for more accurate reliability assessments. The goal is to improve road safety by identifying and mitigating risks posed by unreliable or abnormal vehicles in proximity.
20. A computer program product comprising a non-transitory computer-readable storage medium having stored thereon instructions which when executed configure a first vehicle to: receive a first packet including position information of a second vehicle and first identity information from the second vehicle through a first communication scheme; receive a second packet including the first identity information from the second vehicle through a second communication scheme different from the first communication scheme; acquire first distance information about a distance between the first vehicle and the second vehicle based on the position information of the second vehicle; acquire second distance information about a distance between the first vehicle and the second vehicle based on an interval between a first time point when the first packet is received and a second time point when the second packet is received and a transmission speed of the second communication scheme; and authenticate the second vehicle based on the first distance information and the second distance information.
The invention relates to vehicle authentication systems that verify the identity of nearby vehicles using multiple communication schemes to prevent spoofing or relay attacks. The system addresses security vulnerabilities in vehicle-to-vehicle (V2V) communication by cross-verifying distance measurements obtained through different communication channels. A first vehicle receives a packet containing position data and identity information from a second vehicle via a first communication method, such as GPS-based positioning. Simultaneously, the first vehicle receives another packet with the same identity information from the second vehicle via a second communication method, such as a dedicated short-range communication (DSRC) or cellular network. The first vehicle calculates a first distance estimate using the position data from the first packet. Independently, it calculates a second distance estimate by measuring the time difference between receiving the two packets and applying the known transmission speed of the second communication method. By comparing the two distance estimates, the system authenticates the second vehicle, ensuring that the distance measurements are consistent and the communication is not being relayed or spoofed. This dual-verification approach enhances security in autonomous driving and connected vehicle networks.
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June 2, 2020
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